Theodosius Dobzhansky

Theodosius Dobzhansky (25 January 1900-18 December 1975) was a Ukrainian evolutionary biologist who, along with Thomas Hunt Morgan and others, pioneered the mathematical foundations unifying genetics and the theory of evolution.

Biography
Theodosius Dobzhansky was borm in Nemyriv, Russian Empire (now Ukraine) in 1900, and his family moved to Kiev in 1910. He published 35 scientific works on entomology and genetics before travelling to the United States on a scholarship in 1927, studying alongside Thomas Hunt Morgan and Alfred Sturtevant at Columbia University in New York City. In 1937, while at the California Institute of Technology, he published one of the major works on modern evolutionary synthesis, and he published Genetics and the Origin of Species in 1937, with two more editions being published in 1941 and 1951. He was awarded the National Medal of Science in 1964 and the Franklin Medal in 1973, and he died in San Jacinto, California in 1975.